n!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
317: | \[317!!!!+1\] | 2 × 664275422154977<15> × 810850552979963521727639455890819345489652740956625682547802027090752439228170088519736895280465104916037135511100090139371562245049807342260326934769<150> |